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arXiv 1601.04279astro-ph.HEastro-ph.CO
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伽玛射线暴与基础物理

GRBs and fundamental physics

Patrick Petitjean, F. Y. Wang, X. F. Wu, J. J. Wei

摘要:

伽马射线暴(GRB)是宇宙学距离上短暂而强烈的闪光,是宇宙中最明亮的爆炸。伽玛射线暴的高亮度使它们在可见宇宙的边缘都能被探测到。因此,它们是探测高红移宇宙性质的独特工具:包括宇宙膨胀和宇宙的暗能量、恒星形成率、再电离期和宇宙的金属演化。首先,它们可以用来限制宇宙加速的历史和暗能量在其他宇宙探测器难以达到的红移范围内的演化。第二,长伽玛暴被认为是由大质量恒星的坍缩形成的。因此,它们可以用来推导高红移恒星的形成率,这是目前的观测所不能探测的。此外,伽玛暴作为宇宙学工具的使用可以揭示宇宙的再电离历史和金属演化,星系际介质(IGM)的性质和早期宇宙中第一批恒星的性质。但除此之外,伽玛暴高能光子还可以用来约束洛伦兹不变性破坏(LIV)和检验爱因斯坦等效原理(EEP)。本文综述了伽玛暴宇宙学和伽玛暴探测基础物理的研究进展。

英文摘要:

Gamma-ray bursts (GRBs) are short and intense flashes at the cosmological distances, which are the most luminous explosions in the Universe. The high luminosities of GRBs make them detectable out to the edge of the visible universe. So, they are unique tools to probe the properties of high-redshift universe: including the cosmic expansion and dark energy, star formation rate, the reionization epoch and the metal evolution of the Universe. First, they can be used to constrain the history of cosmic acceleration and the evolution of dark energy in a redshift range hardly achievable by other cosmological probes. Second, long GRBs are believed to be formed by collapse of massive stars. So they can be used to derive the high-redshift star formation rate, which can not be probed by current observations. Moreover, the use of GRBs as cosmological tools could unveil the reionization history and metal evolution of the Universe, the intergalactic medium (IGM) properties and the nature of first stars in the early universe. But beyond that, the GRB high-energy photons can be applied to constrain Lorentz invariance violation (LIV) and to test Einstein's Equivalence Principle (EEP). In this paper, we review the progress on the GRB cosmology and fundamental physics probed by GRBs.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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